Pending Deletions and Snapshot Usage

If there are pending deletions, the Snapshot Usage field generally displays a value greater than zero. This happens even if there are no user or hidden snapshots.

The array OS processes data deletion as a low priority background operation to ensure that maximum performance is available to initiators. When there are numerous large deletions or overwrite workloads, the pending deletions might increase temporarily.

NOTE: In the CLI, this information appears as Uncompressed snapshot usage including pending deletes (Mib) when you are running OS 5.1.x.x and later and as Snapshot usage including pending deletes (MiB) in earlier versions of the OS. In addition, the values the CLI displays for pool information and array information also include the overall pending deletions.